Personal sound amplifier



FIG. 1 is a perspective view of a personal sound amplifier showing with my design;

FIG. 2 is a front elevation view of my design;

FIG. 3 is a top elevation view of my design;

FIG. 4 is a rear elevation view of my design;

FIG. 5 is an elevation view showing one side of my design;

FIG. 6 is an elevation view showing the other side of my design; and,

FIG. 7 is a bottom elevation view of my design.

The broken lines form no part of the claimed design. 

The ornamental design for a personal sound amplifier, substantially as shown and described: 